I have a 97 Expedition with air suspension.
I have been having problems with it. I took it to the dealer and they said it was the compressor and they wanted $600 to fix it. Yeah right!! So I bought a new compressor ($162) and had a friend put it on and that did not fix the problem. Friend said it looked like the ride height sensor was bad so I bought one of those and had him replace it. It didn't work either. He continued to work on it and noticed there was a leak in the airline and he fixed it and it has raised slightly but still not where it should be. The air bags are not leaking so I don't know what else to check. He did say I needed new shocks but I don't think that would make it ride low would it?